From: Mike Snitzer <snitzer@redhat.com>
To: Mikulas Patocka <mpatocka@redhat.com>
Cc: Jens Axboe <axboe@kernel.dk>,
dm-devel@redhat.com, linux-block@vger.kernel.org,
"Alasdair G. Kergon" <agk@redhat.com>,
Christoph Hellwig <hch@infradead.org>
Subject: Re: [PATCH 0/3] per-cpu in_flight counters for bio-based drivers
Date: Fri, 30 Nov 2018 10:50:54 -0500 [thread overview]
Message-ID: <20181130155054.GA13744@redhat.com> (raw)
In-Reply-To: <20181130144343.GA13483@redhat.com>
On Fri, Nov 30 2018 at 9:43am -0500,
Mike Snitzer <snitzer@redhat.com> wrote:
> On Tue, Nov 27 2018 at 7:42pm -0500,
> Mikulas Patocka <mpatocka@redhat.com> wrote:
>
> > These are the patches for per-cpu in_flight counters.
>
> Do you have updated before vs after performance results for these
> changes?
>
> I'd imagine they are comparable to your previous run (though that run
> included some other DM changes that I already staged).
Would like to see before vs after with:
http://git.kernel.dk/cgit/linux-block/log/?h=for-4.21/block
vs
https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git/log/?h=block-dm-4.21-inflight
(block-dm-4.21-inflight is based on latest for-4.21/block -- and it
contains DM changes in front of the block changes from this thread; I'd
prefer Jens take the changes like this rather than leave DM in a bit of
a mess for me/us to have to cleanup later)
next prev parent reply other threads:[~2018-11-30 15:50 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-28 0:42 [PATCH 0/3] per-cpu in_flight counters for bio-based drivers Mikulas Patocka
2018-11-30 14:43 ` Mike Snitzer
2018-11-30 15:50 ` Mike Snitzer [this message]
2018-11-30 19:57 ` Mike Snitzer
2018-11-30 22:22 ` [PATCH v2 0/6] " Mike Snitzer
2018-11-30 22:22 ` [PATCH v2 1/6] dm: dont rewrite dm_disk(md)->part0.in_flight Mike Snitzer
2018-11-30 22:22 ` [PATCH v2 2/6] dm rq: leverage blk_mq_queue_busy() to check for outstanding IO Mike Snitzer
2018-11-30 22:22 ` [PATCH v2 3/6] block: delete part_round_stats and switch to less precise counting Mike Snitzer
2018-11-30 22:22 ` [PATCH v2 4/6] block: switch to per-cpu in-flight counters Mike Snitzer
2018-12-05 17:30 ` Jens Axboe
2018-12-05 17:49 ` Mike Snitzer
2018-12-05 17:54 ` Jens Axboe
2018-12-05 18:03 ` Mike Snitzer
2018-12-05 18:04 ` Jens Axboe
2018-12-05 18:18 ` Mike Snitzer
2018-12-05 18:35 ` Jens Axboe
2018-11-30 22:22 ` [PATCH v2 5/6] block: return just one value from part_in_flight Mike Snitzer
2018-11-30 22:22 ` [PATCH v2 6/6] dm: remove the pending IO accounting Mike Snitzer
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